During this course 2011 - 2012 MATHEMATICS is being taught for 4º ESO.

27 / 6 / 12 HAPPY HOLIDAYS

I HOPE YOU LIKE THIS VIDEO:



HAVE A GOOD SUMMER!

18 / 6 / 12 NEXT STEP IN OUR STATISTICS


After taking all the surveys, it's time to collect the data. 
We'll use a spreadsheet so, data will be organised in tables.

Spreadsheets allow us to have nice graphs and calculate some statistical parameters.

If you've not taken the surveys yet:
Groups 2 and 3 questionnaires are available in twinspace (etwinning site).


15 / 6 / 12 WORKING WITH STATISTICS




Please, have your questionnaires ready on google docs and share them. 
On monday I'd like you to take the surveys.
If you have any problem, don't worry and ask.






ASTURIAS MATHEMATICAL OLYMPIAD


CONGRATULATIONS IMANOL, 
YOU ARE GREAT!


8 / 6 / 12 SOME MORE FUNCTIONS



Some important concepts to study functions:

Here, you'll find some useful graphs, so that, you can try to study their functions.

But, remember that for a complete study of the function you'll have to wait one more year. 
To graph functions, you can use this link (or another one you like better):

QUESTION OF THE WEEK

CAN YOU GUESS?...

WHAT'S THE DOMAIN AND RANGE OF THESE FUNCTIONS?

a) y = | x |-1/2

b) y = (-x)-1/2


30 / 5 / 12 INTRODUCTION TO FUNCTIONS


To introduce functions it's very useful to remember some concepts:
To graph functions you can use this link:
But, it´s possible to work with a graphic calculator. There are some of them on line: